A probabilistic ghost in the experimental machine

Dorian Jullien and Nicolas Vallois

Journal of Economic Methodology, 2014, vol. 21, issue 3, 232-250

Abstract: This paper focuses on the opposition between two contemporary research programs in economics: behavioral economics (BE) and experimental market economics (EME). Our claim is that the arguments of this opposition can be clarified through the lens of another opposition in the philosophy of probability and in probability theory, between Bayesianism and frequentism. We show how this probabilistic opposition has indirectly shaped a controversy in psychology that opposes two research programs - Heuristics and Biases and Ecological Rationality - which play respective roles in the foundations of individual rationality in BE and EME. To understand these theoretical interrelationships, we investigate the 1996 controversy between Kahneman, Tversky, and Gigerenzer. Those psychologists held different views on how probabilistic representations influence the context-dependency of rationality. This provides a rationale to suggest that a probabilistic ghost may be haunting the experimental machine in economics, and explains how and why the oppositions between BE and EME are structured around the interplay between the norms of rationality and the context in which rationality is exercised.

Date: 2014
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Related works:
Working Paper: A probabilistic ghost in the experimental machine (2014)
Working Paper: A probabilistic ghost in the experimental machine (2014)
Working Paper: A Probabilistic Ghost in the Experimental Machine (2012)
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DOI: 10.1080/1350178X.2014.939689

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